[Solved] Which of the following is the correct way to use caching with Langchain's get_or_set method? — Ans: cache.get_or_set(key, lambda: expensive_call()) | LangChain

LangChain - Production Deployment

Which of the following is the correct way to use caching with Langchain's get_or_set method?

Acache.get_or_set(key, lambda: expensive_call())

Bcache.set_or_get(key, expensive_call())

Ccache.get_or_set(expensive_call(), key)

Dcache.get(key, expensive_call())

Step-by-Step Solution

Solution:

Step 1: Recall get_or_set syntax
The method takes a key and a function to call if the key is missing.
Step 2: Match correct argument order
Correct usage is cache.get_or_set(key, lambda: expensive_call()) to delay call until needed.
Final Answer:
cache.get_or_set(key, lambda: expensive_call()) -> Option A
Quick Check:
Correct method and argument order = B [OK]

Quick Trick: Remember: key first, then function in get_or_set [OK]

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Which of the following is the correct way to use caching with Langchain's get_or_set method?